JP2019024606A - Absorbent article - Google Patents

Abstract

To provide an absorbent article capable of improving fitness in an area forming a compression groove in an absorber and suppressing lateral leakage and backward and forward leakage.SOLUTION: An absorbent article 10 comprises a liquid-permeable front surface sheet 14, a liquid-impermeable rear surface sheet 12, and an absorber 13 disposed between the liquid-permeable front surface sheet 14 and the liquid-impermeable rear surface sheet 12. The absorber 13 is provided with a recess formation area N1 in which plural compressed and formed recesses 20 are formed. The recess formation area N1 includes an area in which a basis weight is lower than that of the absorber 13 in an area N2 other than the recess formation area N1.SELECTED DRAWING: Figure 5

Description

  The present invention relates to an absorbent article having a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent body disposed therebetween.

  Conventionally, absorbent articles such as disposable diapers (hereinafter also simply referred to as “diapers”) in which discharged body fluid (hereinafter also simply referred to as “body fluids”) is guided to an absorber and absorbed are widely known. The absorbent body is obtained by wrapping an absorbent main body mainly composed of pulp and a super absorbent polymer (hereinafter also referred to as “SAP”) with a covering member such as tissue or nonwoven fabric. This absorbent body is thicker than the top sheet or the back sheet, and may not be easily bent to fit the wearer's skin.

  Thus, for example, Patent Document 1 discloses a disposable diaper that is formed with a plurality of compressed grooves in the absorbent body and is easily bent and bent in the compressed grooves, thereby improving fit to the wearer's skin. Yes.

JP2015-016218A

  However, in the absorbent article described in Patent Document 1, since the compressed groove is formed by compressing the absorbent body, the bottom portion and the side wall portion of the compressed groove are hardened with high density. There was a risk that the ease of bending could not be realized. Further, in the absorbent article described in Patent Document 1, since the compressed groove is formed over the entire surface of the absorbent body, for example, body fluid reaches the end of the absorbent body through the compressed groove, and is energized. There was a possibility that side leakage or dorsoventral leakage could occur due to body fluid.

  The objective of this invention provides the absorbent article which can improve the fitting property in the area | region which forms a pressing groove among absorbers including the said aspect, and can suppress a side leak and a back belly leak. It is in.

  An absorbent article according to the present invention is an absorbent article comprising a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent body disposed between the top sheet and the back sheet. The absorbent body is provided with a recessed portion forming region in which a plurality of recessed portions formed by compression are formed, and the recessed portion forming region has a basis weight of the absorber in a region other than the recessed portion forming region. A low region is provided.

  According to this invention, since the basic weight of the area | region in which a recessed part is formed becomes low, as a result of becoming soft and becoming easy to bend in the area | region, it becomes possible to improve the fitting property of an absorbent article. Moreover, it becomes possible to suppress a side leak and a back belly leak by the area | region in which the recessed part is not formed.

In the external appearance of an example of the diaper which concerns on one Embodiment of this invention, it is the perspective view seen from the front side. It is a disassembled perspective view of the diaper shown in FIG. It is the top view which looked at the diaper of an extension state concerning one embodiment of the present invention from the top sheet side. It is the top view which looked at the absorber based on one Embodiment of this invention from the top sheet side, and is a figure for demonstrating an example of the recessed part formation area in which the several recessed part was formed. It is a VV direction sectional view in Drawing 3.

  An embodiment of an absorbent article according to the present invention will be described in detail with reference to FIGS. 1 to 5. However, the present invention is not limited to the aspect of the present embodiment.

  First, an embodiment in which the present invention is applied to a deployable disposable diaper will be described below.

<Main configuration of diapers>
FIG. 1 is a perspective view of an example of a diaper according to an embodiment of the present invention, viewed from the front side. The diaper 10 according to the present embodiment is a deployable disposable diaper, and includes a front body region 10F, a back body region 10R, and a crotch region 10C that connects the front body region 10F and the back body region 10R. Moreover, the waist periphery opening part 10W which surrounds a wearer's waist part with the front body area | region 10F and the back body area | region 10R at the time of wear is formed. Similarly, a pair of left and right leg openings 10L that surround the thighs of the wearer's legs are formed by the lower ends of the front body region 10F and the back body region 10R and the crotch region 10C.

  When worn, the front body region 10F is positioned on the wearer's ventral side, and the back body region 10R is positioned on the wearer's back side. The crotch region 10C covers the wearer's crotch when worn, and the wearer's legs are respectively passed through the pair of left and right leg openings 10L. Therefore, the leg-hole opening 10L is located anywhere from the base of the wearer's legs to around the thigh.

  The imaginary line P extends through the crotch part from the abdomen side to the back side in the central part of the diaper. Specifically, for example, if the imaginary line P is defined with the waist side of the diaper as the upper side and the crotch side as the lower side, the phantom line P extends along the diaper surface and in the vertical direction, and passes through the crotch part on the back side. Also extends in the vertical direction.

  The left and right end edges of the back body region 10R of the cover sheet 11 located outside the diaper 10 are overlapped with the left and right end edges of the front body region 10F when worn, and are connected to form a leg opening 10L. A pair of left and right fastening tapes 10A to be obtained is bonded. The fastening tape 10A is bonded to the front patch sheet 10B adhered on the cover sheet 11 in the front body region 10F so as to be repeatedly peelable.

  FIG. 2 is a schematic exploded perspective view of the diaper 10 shown in FIG. 1, and FIG. 3 is a plan view of the extended diaper 10 as viewed from the top sheet 14 side according to one embodiment of the present invention. . The absorber 13 in FIG. 2 and the diaper 10 in FIG. 3 are shown partially broken for convenience of explanation.

  As shown in FIG. 2, the diaper 10 according to the present embodiment includes, in order from the outside, a cover sheet 11 formed of a thin nonwoven fabric in order to obtain a good touch, and a back sheet (back sheet) having liquid impermeability. 12, an absorbent body 13, a liquid-permeable top sheet (surface sheet) 14, and a pair of side sheets 15.

  In the present embodiment, as shown in FIG. 3, the absorber 13 has a region (a recess forming region N <b> 1 to be described later) where a plurality of recesses 20 formed by compression are formed. That is, a plurality of recesses 20 are formed in a part of the recess forming region N1. As shown in FIG. 3, by forming the concave portion 20, the concave portion 20 is easily bent and the fit of the diaper 10 can be improved. Further, in this embodiment, although the details will be described later, the basis weight of the region where the recess 20 is formed is lower than that of the other regions, so that the absorber is more than the case where the recess 20 is simply provided. 13 becomes soft and it becomes easy to bend, and the fitting property of the diaper 10 is improving. In addition, since the concave portion 20 is continuously formed, air can pass through to the ventral side or the back side, and air permeability can be ensured. In addition, the discharged body fluid can be quickly diffused and can be efficiently absorbed by the absorber 13 using the absorber 13 as a whole.

  In the present invention, the plurality of recesses 20 are physical forms formed by overlapping a plurality of recesses 20 as a plurality of structural units in addition to a plurality of individual recesses 20 that are not physically continuous with each other. It is also a concept that includes those that are consecutive. Examples of the structural unit include, but are not limited to, a straight line and a continuous curve having no bend (corner) in the middle thereof.

  For example, an adhesive is applied to the surface where the top sheet 14 and the absorbent body 13 are in contact with each other, and the concave portion 20 is formed by pressing a laminated body of the absorbent body 13 and the top sheet 14 (hereinafter also referred to as “absorbing portion”). Provided. This pressing is performed by, for example, an embossing roll. Thereby, the top sheet 14 and the absorber 13 are engaged with each other and integrally joined in the entire recess 20 extending from the bottom surface (bottom wall) to the wall surface (side wall) of the recess 20. The thickness (the thickness of the absorbing portion) made of the top sheet 14 and the absorber 13 in the bottom portion of the recess 20 is preferably about 1/2 to 1/7 of the thickness when not compressed. More preferably, it is about 1/4 to 1/7. With this configuration, since the top sheet 14 and the absorber 13 are integrally formed, even when the top sheet 14 and the absorber 13 are firmly joined, the top sheet 14 is difficult to peel off, and the absorber 13 swells after urination The top sheet 14 is in a state along the groove, and the groove is maintained.

  Further, in this embodiment, although details will be described later, as shown in FIGS. 4 and 5 described later, the absorber 13 has a recess forming region N1 in which a plurality of recesses 20 formed by compression are formed. A recess non-formation region N2 in which no recess 20 is formed is provided, and the recess formation region N1 is provided with a region lower than the basis weight (weight per unit area) of the absorber 13 in the recess non-formation region N2.

  Returning to FIG. 2 and FIG. 3, a pair of notches 11 </ b> N serving as leg opening portions 10 </ b> L are formed on the left and right sides of the crotch region 10 </ b> C of the cover sheet 11. Between the cover sheet 11 and the pair of side sheets 15, a pair of rubber threads 16 for forming a leg gather is bonded in an extended state.

  The top sheet 14 is composed of a nonwoven fabric having liquid permeability. The back sheet 12 is bonded to the cover sheet 11, and the absorber 13 is disposed between the back sheet 12 and the top sheet 14, and the top sheet 14 is bonded to the back sheet 12 through the absorber 13. . Further, in the backsheet 12, an area corresponding to the upper end portion of the back body area 10 </ b> R extends along the width direction of the backsheet 12, and is elastic for giving a wearer an appropriate wearing feeling around the waist. Sheet 10D is joined.

  The absorbent body 13 of this embodiment located under the top sheet 14 is obtained by coating an absorbent core 17 mainly made of pulp and SAP with a covering member (core wrap) 18 such as tissue or nonwoven fabric. The seam formed by wrapping the absorbent core 17 with the covering member 18 is, for example, formed on the upper surface of the absorbent body 13 and extending in the longitudinal direction, as shown in FIG. The absorbent body 13 of this embodiment has an elongated shape so as to extend from the front body, the crotch, and the back body. And the absorber 13 is divided into three parts into the back body part M1, the crotch part M2, and the front body part M3 as shown in FIG. 4 mentioned later. Here, assuming that the front body part M3 to the back body part M1 are the front and back (up and down) directions, and the direction perpendicular to the front and back part M1 is the left and right direction, the absorbent body 13 of the present embodiment is a rectangular having different front and rear (up and down) left and right lengths. (In FIGS. 2 and 3, the front and rear (up and down) lengths are longer than the left and right lengths). In addition, the shape of the absorber 13 of this embodiment is not restricted to this, For example, the thing of the substantially square whose front and back (upper and lower) left and right lengths are comparable, and the corner | angular of the front and rear (up and down) end are rounded off Various shapes such as an elliptical shape extending in the front-rear direction (up and down) and a circular shape are included. Moreover, a pair of notch parts which make | form arc shape may be formed in the crotch part M2 of the absorber 13 so as to correspond to a pair of leg periphery opening part 10L. In addition, in the diaper 10 which concerns on this embodiment, although the absorber 13 wrapped with the coating | coated member 18 is used, the absorbent article which concerns on this invention uses the absorptive core 17 which is not wrapped with the coating | coated member 18. FIG. May be.

  In the present embodiment, a pair of hydrophobic side sheets 15 forming a three-dimensional gather are provided on the left and right side edges in the width direction of the top sheet 14. The pair of side sheets 15 is a member that rises along the left and right side edges of the absorbent body 13 when worn, and prevents lateral leakage of the discharged body fluid. Cutout portions 15N are formed at the outer edge portions of the pair of side sheets 15 in the same shape as the pair of cutout portions 11N of the cover sheet 11. In each of the pair of side sheets 15, a rubber thread 19 as a three-dimensional gather stretchable material is arranged in an expanded state in a form in which the inner edge portion is folded and gripped toward the absorber 13. The pair of side sheets 15 rises toward the wearer's skin contact direction when the rubber thread 19 contracts. The three-dimensional gather can employ a known configuration used in conventional disposable diapers. For example, it can be formed by sandwiching and fixing a stretched three-dimensional gather elastic material between the layers of the water repellent sheet.

<Recess formation area>
FIG. 4 is a plan view of the absorbent body 13 as viewed from the top sheet 14 side according to an embodiment of the present invention, and a region of the absorbent body 13 (hereinafter, referred to as a plurality of concave portions 20 formed by compression). It is also a figure for demonstrating an example. 5 is a cross-sectional view in the VV direction in FIG. In the cross-sectional view of FIG. 5, the high density of the absorber 13 is expressed by the density of dots.

  In the present embodiment, a plurality of recesses 20 are formed in the absorber 13, and the plurality of recesses 20 form a lattice pattern as a whole. Specifically, as shown in FIGS. 2 and 3, the plurality of recesses 20 are formed on the surface of the absorber 13 so as to extend in an oblique lattice shape. As shown in FIG. 4, the position of the imaginary line P on the absorber 13 extends from the upper end of the front body portion M3 toward the lower end of the back body portion M1, and the imaginary line P In the case of an elongated shape, it extends in the longitudinal direction. Each of the plurality of recesses 20 is inclined to the left and right with respect to the virtual line P.

  The recessed portion forming region can be, for example, a substantially rectangular region extending in the longitudinal direction of the absorbent body 13 so as to be in contact with both end portions of the plurality of recessed portions 20 (left and right end portions of the recessed portion 20 in FIG. 4). As shown in FIG. 4, this rectangular region can be represented by a recess forming region N <b> 1 as an absorption portion region where the recess 20 is formed. A region other than the recess formation region N1 (that is, a region where the recess 20 is not formed) is defined as a recess non-formation region N2. With this configuration, the non-recessed region N2 serves as a weir, and the body fluid that has traveled through the recess 20 can be dammed (or the body fluid is weakened), thereby preventing side leakage. It becomes. In the present embodiment, the shape of the recess forming region N1 is substantially rectangular. However, various shapes such as a polygon, a circle, and an ellipse can be adopted as long as the effect of the present invention is exhibited. In the present embodiment, the recessed portion forming region N1 is not formed up to the end in the width direction (left and right direction in FIG. 4) of the absorbing portion of the diaper 10, but is longitudinal in the center (up and down direction in FIG. 4). It is formed in a band shape along. However, the present invention does not limit the position and size of the recess forming region N1, and for example, the embodiment in which the recess forming region N1 is not formed up to the end in the longitudinal direction (vertical direction in FIG. 4) of the absorber 13. Is also acceptable. In this case, since the recessed part non-formation area | region N2 is formed in the edge part of the longitudinal direction of the absorber 13, it can suppress that a bodily fluid leaks through the recessed part 20, and a back belly. In addition, the recessed part non-formation area | region N2 is not restricted to these aspects, You may provide in any position of the absorber 13 in the range with the effect of this invention that can suppress a side leak and a back belly leak. In addition, in the present embodiment, the range in which the recessed portion forming region N1 is provided extends to the front body part M3, the crotch part M2, and the back body part M1, but is not limited to this, for example, only the crotch part M2 There may be.

  In the present invention, as shown in FIG. 4 of the present embodiment, the recess forming region N1 is formed by connecting the ends located on the outermost side (the edge side of the absorber 13) of the plurality of recesses 20 in a straight line in order. In addition to being a rectangular region that includes a plurality of recesses 20, it can also be defined as follows. That is, when a virtual circle having a specific diameter is placed on the surface of the absorber 13 in plan view, when at least a part of the range of the circle overlaps at least a part of the recess 20, A portion below the circle (the portion of the absorber 13 that overlaps the circle in plan view (and thus includes the thickness direction)) is defined as a part of the recess forming region N1. The entirety of the recess forming region N1 includes at least the recess 20 when the virtual circle is moved all over the surface of the absorber 13 in a range overlapping with at least a part of the absorber 13 in plan view. It is equal to the sum of the range of circles that overlap part. Here, the diameter of the circle can be selected from a range of 20 to 30 mm, for example, and can be set to 20 mm or 30 mm, for example. However, depending on the case, the basis weight of each region of the absorbent body 13 may be designed after selecting from a range of 5 to 50 mm without being limited to a value within this range.

  The recess 20 is preferably formed in the central region of the absorbent body 13 from the viewpoint of the liquid diffusibility, air permeability, and fit properties described above. Therefore, the recess forming region N1 preferably includes the central region of the absorber 13. Here, the central region of the absorbent body 13 of the present invention refers to a region that first comes into contact with a liquid such as urine and the vicinity thereof. In addition, the center area | region of the absorber 13 can be changed with the wearer's physique, sex, etc. of an absorbent article. Typically, the central region of the absorber 13 is a region that can be sequentially arranged in the longitudinal direction of the absorber when the absorber 13 is virtually simply divided into three equal parts from the front end to the rear end. It can be set as the center area of. The division ratio may be set to 1/3: 1/3: 1/3 as described above for the front end: center: rear end, but is not limited to this, for example, 1/5 to 2/5: 1. It can also be set to the range of / 5 to 1/2: 1/5 to 2/5, and there is no particular limitation. Specifically, the form of 1/5: 3/5: 1/5 and the form of 2/5: 1/5: 2/5 are mentioned. In the present embodiment, as shown in FIG. 4, the central region of the absorber 13 is indicated by regions M2 and N1 where the crotch portion M2 and the recess forming region N1 overlap. In the present embodiment, as shown in FIG. 4, the recess formation region N1 includes the central region M2 · N1, but the present invention is not limited to this, and a part or all of the central region M2 · N1 is formed. Even if it is not included, it is acceptable.

  The basis weight of the absorbent core 17 of the absorbent body 13 in a part (or all) region of the recessed portion forming region N1 is lower than the basis weight of the absorbent core 17 of the absorbent body 13 in the recessed portion non-formed region N2. . As a result, as described above, the recess formation region N1 is provided with a region lower than the basis weight of the absorbent body 13 in the recess non-formation region N2. According to this aspect, the density of the absorber 13 in the recessed portion forming region N1 is reduced, so that the region is softened and easily bent. Therefore, since it becomes easy to follow a wearer's movement, the fit nature of diaper 10 can be improved. Moreover, since it becomes soft in the area | region, the touch is also improved. In this embodiment, the area lower than the basis weight of the absorbent body 13 in the recess non-formation area N2 is formed in the entire recess formation area N1, but in the present invention, it is formed in a part of the recess formation area N1. May be. In particular, since the region having a low basis weight is provided in the central region M2 · N1 of the absorbent body 13, it is possible to ensure the ease of bending at the crotch portion M2. About the area | region with a low basic weight, the magnitude | size and a form are arbitrary, but in order to ensure easy bending, the area of the sum total is 30% or more of the total area of the recessed part formation area N1, for example. It is preferable. This ratio is more preferably set to 40% or more, and by increasing the ratio to 50%, 60%, 70%, 80%, 90%, 100%, etc., it is possible to secure a more preferable bendability. It becomes possible. Further, paying attention only to the central region M2 · N1, the region having a low basis weight is preferably 30% or more of the total area of the central region M2 · N1. This ratio is more preferably set to 40% or more, and by increasing the ratio to 50%, 60%, 70%, 80%, 90%, 100%, etc., it is possible to secure a more preferable bendability. It becomes possible.

In the present embodiment, as described above, in the absorbent body 13, the basis weight in the recess formation region N <b> 1 is lower than the basis weight in the recess non-formation region N <b> 2. In order to effectively demonstrate the effects of the present invention, the present inventor has a preferable range of the basis weight of the absorbent core 17 as the whole of the concave portion non-forming region N2 is 90 g / m ² to 300 g / m ^2. The preferred range of the basis weight of the absorbent core 17 as the entire formation region N1 is 63 g / m ² to 270 g / m ² , and the absorption in the recess formation region N1 with respect to the basis weight of the absorbent core 17 in the recess non-formation region N2 It has been found that a suitable range of the basis weight ratio of the sex core 17 is 70% to 90%.

The absorption part of the diaper 10 which concerns on this embodiment is formed by the following processes (1) to (6), for example. The absorbent mat (representing the absorbent core 17 that does not include the covering member 18 in the description of this process) is formed by mixing pulp and powdery SAP and spraying them onto the filters of two forming drums, for example. The
(1) First, an absorbent mat having a constant thickness is prepared by the first forming drum.
(2) Next, an absorbent mat was created by the second forming drum so as not to deposit pulp or SAP absorbent material in the portion corresponding to the recess forming region N1, and was produced in step (1). Laminate on absorbent mat. Thus, a predetermined absorbent mat is created.
(3) Thereafter, the predetermined absorbent mat is wrapped by the covering member 18, and the covering member 18 and the absorbent mat are bonded together by hot melt or the like, thereby creating the absorbent body 13.
(4) Cut the prepared absorbent body 13 into the size of one diaper.
(5) The top sheet 14 is laminated on the cut absorber 13.
(6) The top sheet 14 and the absorbent body 13 are combined, and a region corresponding to the concave portion forming region N <b> 1 is compressed by an embossing roll to form the concave portion 20 in the absorbent body 13.

  Covering the portion corresponding to the recessed portion formation region N1, that is, the portion of the absorber 13 where the amount of the deposited absorbent material is small, by suction conveyance to the absorber 13 in the step (3) or embossing in the step (6). As shown in FIG. 5, for example, as shown in FIG. 5, the thickness of the absorber 13 in the recess formation region N1 where the recess 20 is not formed is equal to the thickness of the absorber 13 in the recess non-formation region N2. . In the present invention, the thickness of the absorber 13 where the recess 20 is not formed in the recess formation region N1 and the thickness of the absorber 13 in the recess non-formation region N2 may not be equal, and the recess formation region N1. The thickness of the absorber 13 in the portion where the recess 20 is not formed may be thicker or thinner.

  Conventionally, if the weight of the absorbent body is generally large, flexibility will be lost or extra thickness will be produced, so that the fit at the time of wearing will be lost, and multiple compressed grooves are formed in the absorbent body And there existed an absorptive article which aimed at improvement in the fit nature to a wearer's skin by making it easy to bend in the pressing slot.

  However, in such an absorbent article, since the compressed groove is formed by compressing the absorbent body, the bottom portion and the side wall portion of the compressed groove are hardened with high density, and are assumed to be bent. There was a risk that ease could not be realized. Further, in such an absorbent article, when a compressed groove is formed over the entire surface of the absorbent body, the body fluid passes through the compressed groove to reach the end of the absorbent body, and is laterally leaked by the body fluid that has been urged. Or dorsoventral leakage could occur.

  According to this embodiment, since the basic weight of the area | region of the absorber in which a recessed part is formed becomes low, the bottom part and side wall part of a pressing groove become soft in the area | region, As a result, it becomes easy to bend | fold in a pressing groove, As a result It is possible to improve the fit of the article.

  Moreover, in the recessed part formation area | region N1, ie, the pressing area | region which tends to harden | cure, the cost reduction by the reduction of materials can be aimed at by setting it as the minimum necessary amount of fabric weight.

  Furthermore, according to the present embodiment, the body fluid that has traveled through the recess 20 can be dammed (or the body fluid is weakened) by the recess non-formation region N2, so that side leakage and back belly leakage are suppressed. Is possible.

<Others>
The present invention is not limited to the above-described embodiments and modifications described in various places, and appropriate changes and modifications can be made without departing from the technical idea of the present invention.

  For example, the structure of the diaper according to the above-described embodiment or a modification thereof is not limited to the unfolded type as described above, and even a diaper including a configuration of an absorbent article as defined in the claims. Any configuration may be used. For example, the present invention can be applied to a pants-type disposable diaper, a urine pad, and the like.

  In addition, the above-mentioned embodiment or its modification is applicable not only to diapers for infants but also to various absorbent articles such as diapers for adults and urine pads.

  Moreover, in the said embodiment, although the recessed part formation area N1 is provided in the top sheet 14 side of the absorber 13, it is not restricted to this. For example, the recessed portion forming region N1 is provided on the back sheet 12 side of the absorbent body 13, or the recessed portion forming region N1 is provided on the top sheet 14 side and the back sheet 12 side (both surfaces of the absorbent body 13) of the absorbent body 13. May be.

  Furthermore, in the said embodiment, although the several recessed part 20 is continuously formed in the surface of the absorber 13, the diagonal lattice-like arrangement pattern is completed, but it is not restricted to this. For example, the plurality of recesses 20 may be intermittently formed on the surface of the absorber 13, and the array pattern of the recesses 20 is, for example, a polygonal array pattern such as a triangle or a hexagon, a linear shape, or a curved shape Alternatively, various arrangement patterns such as a pattern in which wavy ones are arranged in parallel may be used.

M1 Rear body part M2 Inseam part M3 Front body part M2, N1 Central region N1 Concave formation region N2 Concave non-formation region 10 Diaper 10A Fastening tape 10B Front patch sheet 10F Front body region 10R Rear body region 10C Inseam region 10W Waist circumference opening 10L Leg opening 11 Cover sheet 11N, 15N Notch 12 Back sheet (Back sheet)
13 Absorbent body 14 Top sheet (surface sheet)
15 Side sheets 16, 19 Thread rubber 17 Absorbent core 18 Cover member 20 Recess

Claims (4)

An absorbent article comprising a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent body disposed between the top sheet and the back sheet,
The absorbent body is provided with a recessed portion forming region formed with a plurality of recessed portions formed by compression,
The said recessed part formation area is provided with the area | region lower than the basic weight of the said absorber in areas other than the said recessed part formation area, The absorbent article characterized by the above-mentioned.   The absorbent article according to claim 1, wherein the recess forming region includes a central region of the absorbent body.   The absorbent article according to claim 2, wherein an area lower than the basis weight of the absorbent body in an area other than the recessed portion forming area is provided in the central area of the absorbent body.   The absorbent article according to any one of claims 1 to 3, wherein the plurality of recesses form a lattice pattern as a whole.

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